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DSC Analysis and Mechanical Properties of Polypropylene-matrix Nano-composites Filled with Montmorillonite Modified by in-situ Polymerization of Butyl Acrylate

Jing Zhang

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Abstract

Polypropylene (PP)/ montmorillonite (MMT) nano composites were prepared by mechanical melting blending, in which MMT was modified by in situ polymerization of butyl acrylate (BA) The T m, T c, X c and crystallization rate of PP phase in the composites all increased with the increase of the content of BA and MMT Moreover, the modulus and impact strength of the PP/MMT nano composite also increased with the content of BA and MMT, whilst the tensile strength of the composite changed little When the mass fraction ratio of BA/MMT was up to 1/12, the toughness tended to a constant value, and the modulus of the nano composite was the highest

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Polypropylene (PP)/ montmorillonite (MMT) nano composites were prepared by mechanical melting blending, in which MMT was modified by in situ polymerization of butyl acrylate (BA) The T m, T c, X c and crystallization rate of PP phase in the composites all increased with the increase of the content of BA and MMT Moreover, the modulus and impact strength of the PP/MMT nano composite also increased with the content of BA and MMT, whilst the tensile strength of the composite changed little When the mass fraction ratio of BA/MMT was up to 1/12, the toughness tended to a constant value, and the modulus of the nano composite was the highest

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Available abstract

Polypropylene (PP)/ montmorillonite (MMT) nano composites were prepared by mechanical melting blending, in which MMT was modified by in situ polymerization of butyl acrylate (BA) The T m, T c, X c and crystallization rate of PP phase in the composites all increased with the increase of the content of BA and MMT Moreover, the modulus and impact strength of the PP/MMT nano composite also increased with the content of BA and MMT, whilst the tensile strength of the composite changed little When the mass fraction ratio of BA/MMT was up to 1/12, the toughness tended to a constant value, and the modulus of the nano composite was the highest

Key concepts: Materials science, Composite material, Polypropylene, Montmorillonite, Ultimate tensile strength, Composite number, Izod impact strength test, Toughness

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DSC Analysis and Mechanical Properties of Polypropylene-matrix Nano-composites Filled with Montmorillonite Modified by in-situ Polymerization of Butyl Acrylate — Research Paper | ScholarLens